Answer:
7 minutes
Step-by-step explanation:
The scientist changes the temperature for the solution at a rate of -7°C per minute. We need to find out how long it'll take for the solution's temperature to change from 0°C to -49°C. So, we divide -7 by -49 to find out how long it will take:
-49 / -7 = 7
It will take 7 minutes for the temperature to reach -49°C.
Answer:
Part 1:
You can solve the pair of equation graphically by writing the y-intercepts which are (0,-1) and (0,-5) Then follow the slopes of each line till the intercept. The slopes are up 2 over 1 and up 4 over 1 respectivily
Part 2:
When you graph these you get the answer of (2,3)
x is 2 and y is 3
Step-by-step explanation:
Hope it helps :)
pls mark brainliest :P
*insert British accent* "Don't just let 'em take it!"
(x1, y1) (x2, y2)
x2-x1
6--3
6+3
10
y2-y1
14--1
14+1
15
answer : (10,15)
Im pretty sure this is the correct answer, hope it helps xx